Tape-cutting machine



Oct. 29, V E GREEN TAPE CUTTING MACHINE s Sheets-Sheet 1 Filed May '7, 1927 awum floz Verrwr' E. Green &

Oct. 29, 1929." 'v. E. GREEN TAPE CUTTING MACHINE Filed May 7, 1927 ESheets-Sheet 2 Y wueiuto'z I Vl'flOl" EGrreen W & W

ethane/14 5 Oct. 29, 1929.

V. E. GREEN TAPE CUTT ING MACHINE Fild May 7, 1927 3 Sheets-Sheet 5 atlozuaw S Patented Get. 29, 1929 .urrnn .esra rays rare-a? VERNOR E.-G-REEN, F LITTLE FALLS, NEWYORK TAPE-CUTTING .MACI-IINE Application filed'May 7, 1927; Seria1'No. 189,711.

- ticularly .to'do so without having to change i the feeding rollsorthe gears therefor.

Another object is to combine with the main -measuring and cutting a mechanism.

- means for tending to draw the length of ma- -2() terial forward from the-measuring rolls to I the knife faster thansaid measuring rolls positively feed the material so that greater regularityand equality of the cutting and -measuring operation issecured.

- and claimherem.

Flg. 1 is a-slde elevation ofa machine embodying this inventlon.

.Fig. 2 is a vertical longitudinal sectional the front and rear sides of'the machine. For

,theqordinary work of cuttingtapein underwear or; childrens waist factories these' 'rolls ,:may.-convenieritly be made -of a length-of view through the machine, but showing ceru'tain parts' in side elevation.

'Figi 3-.isan end elevation-of the machine was seenfrom the right handend of Fig. 1.

5 Fig.4 is atop-view on a' reduced scale of .videsamachine of-large enough sizeto'cut tape or: similar fabric of any widthrequired. (Where: the machine is'used forcuttin'g a strip said machine.

Referring to v,ticular description .it will. be seen that the machinecomprises a box-shaped frame hav- --b90lQV1OL1S that the machine may be readily-3590 ing feet 8, base 9 andfront and. rear sides lOand 11 extending up from the base with- .said base and sides having mounted therein will also haveits periphery knurled to aid the main shaft 12 and also the shafts for the other rollers and wheels hereinafter men- J 4 tioned.

The main shaft "12 projects forwardly of the'forward side-of -the machine and has fixedly secured-thereto the a wheel 13 which is formed=with a suitable pulleyf'acesfor-receiving froma belt not showngpower for the.

operation of the device.

. by the machine.

Furtherpurposesand advantages of the. .machine will-.appearfrom the specification -.sure 1101125 located abovethe level of-the 'feed rolls on shaft 26.- The feed-rolls .22 and .23..;and the pressure rollv 25 preferably the drawings in 1a morepar- Upon the body or" disk portion 1% of this wheel there areprovideda plurality of spaced holes 15 whereby one or. more striker members 16 may be detachably and selectively mounted for -the.

operation of the movable knife hereinafter described. At the rear of the machine, that is to the back of the rear-side, 11 there is fastened to the projecting end of the main shaft agear 17 a which engages twogears 18;, and 19 which are ofequal size and placed at therear ends of shafts 20 and 21 preferably about on alevel with each other and diagonally above the mainshaft 12. ,Onthe shaft v.20 islocated the first measuring and feeding 5 .roll ,22 and upon the ,shaft v21 -is located-the second measuring and feeding roll .23. ,The peripheries of theserollers 22 and 23 are roughened, preferably knurled, ,so as to =obtain a. firm and relatively positive: .70

hold upon the strip 2 f .oftape or other material which is tov be cut into desired lengths The strip of tape passes over thetopof the two feed rolls 22 and 23 and isheld-down .into engagement with the knurled surfaces ofsaid feed rollers by presextend the full width of the space between go about i one and one-half inches as this "pro-{ of, material of greater width than this it :will' increased in size without departing from the spirit of my invention. Thepressure roll 25 in maintaining the positive grip of the feed shaft; 26 of thepressure. roll 25 through a top bearing member 27 being: vplaced above 'each of' the opposite ends of -'the shaft 26 in the vertical-islot28 and ithroughasaidbear 1 9 I so that the two feeding and measuring rolls .22 and 23 will be rotated clockwise and so 7 feed the strip of tape 24 from the left to the right through the machine. As close as practicable to the right hand end of the machine there will be mounted in the chamber of the machine the auxiliary or tension roller 32 on shaft 33 driventhrough a gear wheel 34 on the rear of said shaft 33 engaging a gear 35 mounted upon the shaft 21 to the rear of the gear 19 on 21. The gear 35 is considerably larger than the gear 34 so that this tension roller 32 will be rotated appreciably faster than the'main feeding and measuring rolls 22 and 23. The face of said roller 32 will be roughened slightly by transverseshallow grooves so as to effect a fair contactwith the strip of material 24 but preferably will not be knurled or roughened asmuch as the measuring and feeding rolls so that the constant slipping of this tensioning roll upon the strip of material will not injure or tear the material.

As the parts are assembled in the machine this tensioning roll 32 is mounted to the right of the last measuring roll and diagonally thereabove so as to bear down upon the upper surface of the strip of material 24 after it comes from the last measuring roll 23. In

, "',order to obtain the necessary yieldingten- 'slon between this roll and the strip of material there is placed in the machine a flat plate 36 extending from the surface of the roll 23" to the fixed knife 37 mounted at the right hand end of the machine'and below the strip of material 24. This plate 36 is yieldmgly pressed upward by means of coiled above the line of travel of the teiial there is- :movable knife 41.

- spring 38 encirclingapin 39 projecting up from the base'9 of the machine. Closely stripof maprovided a guide plate 40 eX- from the tensioning roll 32 to the This movable knife is mounted in the right hand end of the matend ng chine in suitable guideways so asto be capable; of making a vertical reciprocating mot on. Sultably and adj ustably fastened to the knife 41 there is provided the knife holder 42' haV'ingTa lug 43 projecting to the right from said knife holder. I Pivoted to this lug is'aswmging link 44to which is pivotally attached the rearward end of the arm 45 on theoperating lever '46.

This operating lever 46 is pivotallymounted on a pin 47 projecting from the near side of the machine to the left of the knife 41.

Yielding tension means are connected to this lever to normally hold the movable knife raised from the fixed knife 37. Such yielding means may conveniently consist of a coiled spring 48 extending from a screw 49 on the base 9 of the machine to a screw 56 inserted in the lever 46 some distance to the left of the pin 47 of said lever. The left hand end of the operating lever 46 extends past the rim of wheel 14 to the inside thereof and has a downward extension 51 terminating in a short lower face 52. This face 52 in the normalorraisedposition of the movable knife 41 is in the path of the strikers 16 located on the body 14 of the wheel-13. As any one of the striker members 16 comes up into engagement with the face 52 the left hand end ofthe operating lever will be quickly raised thus depressing the knife with a quick shearing action against the strip of material 24 passing acrossthe path of said knife. As the face 52, however, is very short said face is almost instantly released from the advanc-' ing striker member 16 so that the knife is;

very quickly raised again from the path of the strip of material due to the action of the spring 48. The cutting action and the raising again of the knife is so rapid that the strip of material while constantly fed forward is so soon free to pass the line of the movable knife that no interruption of the feeding action is had. Thefiat spring 36 and the guide member 46 with the assistance of the tensioningroll 32 all aid to push the end of the strip past the path of the moving knife as soon as that knife is removed. If it is desired to cut the strips of material up to the limit allowed by the machine only one striker member 16 is used. If the shorter lengths are to be cut the next varia tion is to place two of the striker members 16 in two equally spaced holes 15, that is half way around the body 14 ofthe Wheel 13. Holes are further provided spaced apart one hundred and twenty degrees or one-third of the circle thus allowing the total length of 7 material fed forward by one rotation of the main shaft to be cut into three equal pieces. If it is desired to cut the material into still shorter strips four striker members 16 are used ninet degrees apart. It will be understood t at the striker members may be readily inserted or removed from the wheel:

13 to make any of the selectivelengths within thelimit of the machine.

. Themachine is not limited to cutting tape or otherselvaged material but may be used to cut off pieces from'a long strip offabric having raw, or out edges. Inmany cases such non-selvaged strips can be used effectively by turning over one or both edges of the material in a suitable folding device placed just before the cutting machine' .The fabric so folded over passes into and through the machine and is cut off the same tape and the fold or folds are preserved sufficiently to allow the pieces to be used as so folded.

What is claimed as new and desired to be secured by Letters Patent is:

In a continuously operating machine for cutting off lengths of tape or like material, the combination of a main shaft, a measuring and feeding roll positively driven from said main shaft and adapted to positively engage and continuously feed forward a length of material, a rotatable pressure roll adapted to hold the material in contact with said feeding and measuring roll, a knife located after the measuring roll'and mounted for vertical sliding movement and adapted to descend across the path of the advancing material and cut the same, a wheel fixed uponsaid main shaft and carrying a striker, a pivoted lever operatively connected to said movable knife and adapted to be operated by the striker and a drawing roll yieldingly engaging the material after said feedingand measuring roll operatively connected to said main driving shaft to be driven faster than said main feeding and measuring roll whereby said drawing roll tends' to draw the material faster than supplied by said main feeding and measuring roll whereby the knife has a positive-power cutting motion and a spring for withdrawing the knife after each cutting operation. In witness whereof I have aflixed my signature, this 16th day of April, 1927. VERNOR E. GREEN. 

